[Makefile] The pdd17pmc branch merge broke "make -j2". * Add some missing build interdependencies, so make knows what it can and can't   build in parallel. * Now "make -j2" seems to work pretty reliably for me... more testing is on the   way. * This change shouldn't have any effect on non-parallel builds.
[Makefile] The pdd17pmc branch merge broke "make -j2".
* Add some missing build interdependencies, so make knows what it can and can't
  build in parallel.
* Now "make -j2" seems to work pretty reliably for me... more testing is on the
  way.
* This change shouldn't have any effect on non-parallel builds.


git-svn-id: 6e74a02f85675cec270f5d931b0f6998666294a3@26643 d31e2699-5ff4-0310-a27c-f18f2fbe73fe

FROGGS/parrot,gitster/parrot,tkob/parrot,FROGGS/parrot,parrot/parrot,tkob/parrot,gitster/parrot,youprofit/parrot,youprofit/parrot,tewk/parrot-select,FROGGS/parrot,tewk/parrot-select,parrot/parrot,gagern/parrot,youprofit/parrot,tewk/parrot-select,gagern/parrot,tkob/parrot,FROGGS/parrot,gitster/parrot,tkob/parrot,fernandobrito/parrot,parrot/parrot,gitster/parrot,youprofit/parrot,tewk/parrot-select,FROGGS/parrot,gitster/parrot,tewk/parrot-select,fernandobrito/parrot,gagern/parrot,gagern/parrot,parrot/parrot,gitster/parrot,youprofit/parrot,tewk/parrot-select,gagern/parrot,fernandobrito/parrot,fernandobrito/parrot,parrot/parrot,tkob/parrot,FROGGS/parrot,FROGGS/parrot,gitster/parrot,gagern/parrot,youprofit/parrot,youprofit/parrot,tewk/parrot-select,tkob/parrot,fernandobrito/parrot,fernandobrito/parrot,gagern/parrot,fernandobrito/parrot,youprofit/parrot,FROGGS/parrot,tkob/parrot,tkob/parrot